Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/11198
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Type: Journal article
Title: Chiral extrapolation of lattice moments of proton quark distributions
Author: Detmold, W.
Melnitchouk, W.
Negele, J.
Renner, D.
Thomas, A.
Citation: Physical Review Letters, 2001; 87(17):172001-1-172001-4
Publisher: American Physical Soc
Issue Date: 2001
ISSN: 0031-9007
1079-7114
Organisation: Special Research Centre for the Subatomic Structure of Matter
Statement of
Responsibility: 
W. Detmold, W. Melnitchouk, J. W. Negele, D. B. Renner, and A. W. Thomas
Abstract: We present the resolution of a long-standing discrepancy between the moments of parton distributions calculated from lattice QCD and their experimental values. We propose a simple extrapolation formula for the moments of the nonsinglet quark distribution u-d, as a function of quark mass, which embodies the general constraints imposed by the chiral symmetry of QCD. The inclusion of the leading nonanalytic behavior leads to an excellent description of both the lattice data and the experimental values of the moments.
Rights: ©2001 American Physical Society
RMID: 0020010490
DOI: 10.1103/PhysRevLett.87.172001
Appears in Collections:Special Research Centre for the Subatomic Structure of Matter publications

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